After the extension spring was replaced, the Big Dipper banged.

In this case, you need to check the upper seat and bearing of the shock absorber first, which may be caused by bearing damage.

Secondly, automobile chassis suspension, such as lower limb arm and stabilizer bar, will make noise when it is loose.

Finally, the steering gear is abnormal, which is generally more obvious under the steering wheel.

I suggest you go to the repair shop and listen carefully to where the abnormal noise is. Just fix it below. If there is something wrong with your car, ask the car mechanic. 4S shop professional technician, 10 minutes to solve.